Pros: More bearing surface to stabilize the bullet.What is the difference (pros and cons) of the HB hollow base vs the regular plated bullets. I know the TP is thick plated and can take more velocity, but what difference does the hollow base make?
Cons: A few bucks more per 1000.
Providing that the HB bullets' leading end has the same profile as the FB, the remaining case volume should be the same for both.
Copied from Berry's site.
Our Hollow Base allows the bullet to be longer and provides more contact area with the barrel and rifling which will stabilize the bullet and improve accuracy. The bullet profile is longer but the weight of the bullet remains the same and you can load these bullets using any published load data for a jacketed bullet as long as it is the same weight bullet.